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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.5.0_07) on Fri Aug 25 15:15:34 BST 2006 --><TITLE>ServletUtilities (JFreeChart Class Library (version 1.0.2))</TITLE><META NAME="keywords" CONTENT="org.jfree.chart.servlet.ServletUtilities class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="ServletUtilities (JFreeChart Class Library (version 1.0.2))";}</SCRIPT><NOSCRIPT></NOSCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" 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CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">org.jfree.chart.servlet</FONT><BR>Class ServletUtilities</H2><PRE>java.lang.Object <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.jfree.chart.servlet.ServletUtilities</B></PRE><HR><DL><DT><PRE>public class <A HREF="../../../../src-html/org/jfree/chart/servlet/ServletUtilities.html#line.80"><B>ServletUtilities</B></A><DT>extends java.lang.Object</DL></PRE><P>Utility class used for servlet related JFreeChart operations.<P><P><HR><P><!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#ServletUtilities()">ServletUtilities</A></B>()</CODE><BR> </TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Method Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#createTempDir()">createTempDir</A></B>()</CODE><BR> Creates the temporary directory if it does not exist.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#getTempFilePrefix()">getTempFilePrefix</A></B>()</CODE><BR> Returns the prefix for the temporary file names generated by this class.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#getTempOneTimeFilePrefix()">getTempOneTimeFilePrefix</A></B>()</CODE><BR> Returns the prefix for "one time" temporary file names generated by this class.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#registerChartForDeletion(java.io.File, javax.servlet.http.HttpSession)">registerChartForDeletion</A></B>(java.io.File tempFile, javax.servlet.http.HttpSession session)</CODE><BR> Adds a <A HREF="../../../../org/jfree/chart/servlet/ChartDeleter.html" title="class in org.jfree.chart.servlet"><CODE>ChartDeleter</CODE></A> object to the session object with the name <code>JFreeChart_Deleter</code> if there is not already one bound to the session and adds the filename to the list of charts to be deleted.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#saveChartAsJPEG(org.jfree.chart.JFreeChart, int, int, org.jfree.chart.ChartRenderingInfo, javax.servlet.http.HttpSession)">saveChartAsJPEG</A></B>(<A HREF="../../../../org/jfree/chart/JFreeChart.html" title="class in org.jfree.chart">JFreeChart</A> chart, int width, int height, <A HREF="../../../../org/jfree/chart/ChartRenderingInfo.html" title="class in org.jfree.chart">ChartRenderingInfo</A> info, javax.servlet.http.HttpSession session)</CODE><BR> Saves the chart as a JPEG format file in the temporary directory and populates the <code>ChartRenderingInfo</code> object which can be used to generate an HTML image map.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#saveChartAsJPEG(org.jfree.chart.JFreeChart, int, int, javax.servlet.http.HttpSession)">saveChartAsJPEG</A></B>(<A HREF="../../../../org/jfree/chart/JFreeChart.html" title="class in org.jfree.chart">JFreeChart</A> chart, int width, int height, javax.servlet.http.HttpSession session)</CODE><BR> Saves the chart as a JPEG format file in the temporary directory.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#saveChartAsPNG(org.jfree.chart.JFreeChart, int, int, org.jfree.chart.ChartRenderingInfo, javax.servlet.http.HttpSession)">saveChartAsPNG</A></B>(<A HREF="../../../../org/jfree/chart/JFreeChart.html" title="class in org.jfree.chart">JFreeChart</A> chart, int width, int height, <A HREF="../../../../org/jfree/chart/ChartRenderingInfo.html" title="class in org.jfree.chart">ChartRenderingInfo</A> info, javax.servlet.http.HttpSession session)</CODE><BR> Saves the chart as a PNG format file in the temporary directory and populates the <A HREF="../../../../org/jfree/chart/ChartRenderingInfo.html" title="class in org.jfree.chart"><CODE>ChartRenderingInfo</CODE></A> object which can be used to generate an HTML image map.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#saveChartAsPNG(org.jfree.chart.JFreeChart, int, int, javax.servlet.http.HttpSession)">saveChartAsPNG</A></B>(<A HREF="../../../../org/jfree/chart/JFreeChart.html" title="class in org.jfree.chart">JFreeChart</A> chart, int width, int height, javax.servlet.http.HttpSession session)</CODE><BR>⌨️ 快捷键说明
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